It has become routine in your relationship with Carlos for you to welcome him home from work with a nice warm bath. His bare body dipped beneath a layer of bubbles and he hummed in relaxation as you lathered soap into his skin.

As you start to wash his hair, your fingers gently massaging his scalp, you notice something small and dark moving. Curious, you lean in closer, and your heart sinks as you realize--Carlos has fleas. You grow increasingly concerned as you spot more, their tiny bodies darting between his soapy locks of hair.